<!-- 文本格式化标签 -->

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <strong>strong的加粗</strong>
    <b>b的加粗</b>
    <em>em的倾斜</em>
    <i>i的倾斜</i>
    <ins>ins的下划线</ins>
    <u>u的下环线</u>


</body>
</html>